// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CC_OUTPUT_MANAGED_MEMORY_POLICY_H_
#define CC_OUTPUT_MANAGED_MEMORY_POLICY_H_

#include <stddef.h>

#include "cc/base/cc_export.h"
#include "cc/tiles/tile_priority.h"
#include "gpu/command_buffer/common/gpu_memory_allocation.h"

namespace cc {

namespace proto {
    class ManagedMemoryPolicy;
} // namespace proto

struct CC_EXPORT ManagedMemoryPolicy {
    static const size_t kDefaultNumResourcesLimit;

    explicit ManagedMemoryPolicy(size_t bytes_limit_when_visible);
    explicit ManagedMemoryPolicy(
        const gpu::MemoryAllocation& allocation);
    ManagedMemoryPolicy(
        size_t bytes_limit_when_visible,
        gpu::MemoryAllocation::PriorityCutoff priority_cutoff_when_visible,
        size_t num_resources_limit);
    bool operator==(const ManagedMemoryPolicy&) const;
    bool operator!=(const ManagedMemoryPolicy&) const;

    size_t bytes_limit_when_visible;
    gpu::MemoryAllocation::PriorityCutoff priority_cutoff_when_visible;
    size_t num_resources_limit;

    static TileMemoryLimitPolicy PriorityCutoffToTileMemoryLimitPolicy(
        gpu::MemoryAllocation::PriorityCutoff priority_cutoff);
};

} // namespace cc

#endif // CC_OUTPUT_MANAGED_MEMORY_POLICY_H_
